Classic: Seeking more of a café racer that’s perfectly in tune with long days in the saddle? Our R J.ACK Disc Classic combines elegant style with a more back-friendly riding position, perfect for swift progress on longer rides.

Design Features

BOTTOM BRACKET TYPE

Specify either a press fit or threaded bottom bracket when ordering your frame.

TYRE CLEARANCE

Wider tyres minimise rolling resistance and maximise comfort, so the R J.ACK Disc is designed with clearance for tyres for up to 32mm with the Enve Road Disc fork and up to 30mm with the J.Laverack Road Disc fork.

INTERNAL CABLE ROUTING

Both the gear and rear brake cables are routed through the frame. This not only maintains the exquisite elegance of the frame, but also protects cables from dirt, ensuring smooth shifting and razor-sharp braking.

STRAIGHT OR TAPERED HEADTUBE

The ‘Race’ frame features a straight headtube to fit elegantly with the Enve Road Disc fork, and the ‘Classic’ frame features a tapered headtube to pair seamlessly with the J.Laverack Road Disc fork.

R J.ACK Disc Geometry

We’re on hand to help you choose the right size frame. We have access to thousands of stack and reach figures, so by way of comparison to your current bike we can confidently recommend the correct size for you.

As a guide, we’d suggest:

48cm: 152 – 158cm | 4′ 9″ – 5′ 2″

50cm: 156 – 164cm | 5′ 1″ – 5′ 4″

52cm: 162 – 170cm | 5′ 3″ – 5′ 7″

54cm: 168 – 178cm | 5′ 6″ – 5′ 10″

56cm: 174 – 184cm | 5′ 8″ – 6′ 0″

58cm: 180 – 188cm | 5′ 11″ – 6′ 2″

60cm: 186 – 194cm | 6′ 1″ – 6′ 4″

62cm: 192 – 200cm | 6′ 3″ – 6′ 6″

If you are unsure about which size is right for you, please don’t hesitate to get in touch.